ReutersFirst time Olympic winners, including Australian teen Kyle Chalmers in the 100 meters freestyle, plundered three of the four golds in the Rio pool on Wednesday but there was no getting past Katie Ledecky.

ReutersSingapore's Joseph Schooling made life harder for Michael Phelps after beating the master in their 100 meters butterfly heats on Thursday and going through to the semi-finals with the fastest time.

Reuters TVBritain's diving team wins Olympic gold for the first time ever, and they weren't the only athletes who got the crowd holding their breath on Wednesday. Here are a few of the hair-raising (and heartwarming) Olympic stories from Day 5 in Rio.

ReutersDoctors for the Belgian Olympic medical team suspect polluted water in Rio's Guanabara Bay is responsible for a serious illness that sapped the strength of Evi Van Acker, Laser Radial 2012 bronze medalist, her coach told Reuters.

WASHINGTON No negotiations can be held with North Korea until it improves its behavior, a White House official said on Wednesday, raising questions about U.S. Secretary of State Rex Tillerson's offer to begin talks with Pyongyang any time and without pre-conditions. | Video

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